Why Network-Layer Multicast is Not Always Efficient At Datalink Layer

Document Type Expired Internet-Draft (individual)
Authors Éric Vyncke  , Pascal Thubert  , Eric Levy-Abegnoli  , Andrew Yourtchenko 
Last updated 2014-08-18 (latest revision 2014-02-14)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Several IETF protocols (IPv6 Neighbor Discovery for example) rely on IP multicast in the hope to be efficient with respect to available bandwidth and to avoid generating interrupts in the network nodes. On some datalink-layer network, for example IEEE 802.11 WiFi, this is not the case because of some limitations in the services offered by the datalink-layer network. This document lists and explains all the potential issues when using network-layer multicast over some datalink-layer networks.


Éric Vyncke (evyncke@cisco.com)
Pascal Thubert (pthubert@cisco.com)
Eric Levy-Abegnoli (elevyabe@cisco.com)
Andrew Yourtchenko (ayourtch@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)